EmbeddedRelated.com
    Parts    TI TPS6xxxx Bucks & Boosts Family    TPS62740DSSR    TPS62740DSSR
TPS62740 Ultra-Low-Power Buck Converter

TITPS62740 Ultra-Low-Power Buck Converter

MPN: TPS62740DSSR
Texas Instruments
Switching Voltage Regulators 360-nA Iq SD Cnvtr w / Intg Load Switch A 595-TPS62740DSST
Mouser Compare Prices

Overview

The TPS62740 is a very low quiescent-current synchronous buck converter from Texas Instruments. It is intended for power-sensitive designs that need an efficient step-down supply with an integrated load switch. Its low standby current makes it a strong fit for battery-operated and always-on systems.

Why Choose This Part

The main reason to choose this part is its very low quiescent current, which helps preserve battery life in always-on or deep-sleep designs. As a synchronous buck regulator, it is typically a good choice when you want higher efficiency than a linear regulator can provide for step-down conversion. The integrated load switch can simplify power sequencing or output control in compact designs.

Applications

Battery-powered sensors
Steps down a coin cell or other low-energy source for sensor nodes that spend most of their time in sleep mode.
Wearables
Provides an efficient core or peripheral rail in compact devices where standby current matters.
Energy-harvesting systems
Helps manage very limited power budgets in designs fed by harvested or intermittent energy sources.
Portable IoT devices
Supports radios, microcontrollers, and support circuitry in small wireless nodes that need long battery life.
Low-power embedded controllers
Useful for MCUs and companion circuits in systems that must minimize idle and shutdown losses.

Getting Started

For evaluation, start with a Texas Instruments TPS62740 evaluation board or a TI EVM based on this regulator if available. Use the TI reference design and datasheet to confirm input range, output voltage settings, inductor choice, and required capacitors before committing to layout. A typical workflow is to validate efficiency and transient response on the bench, then replicate the recommended PCB layout closely in your own design.

Also Consider

MCP1640 MCHPMicrochip Technology - A compact low-power DC-DC converter alternative for designers comparing small, efficient power-supply ICs.